

Agreed, grounding as a punishment seems wrong. Use it as an opportunity for developing his wisdom. He knows better now. And there was probably a little voice telling him before it happened that it was stupid. He should learn to listen to that voice. Tell him that even though you think it was reckless, that you are grateful for him coming to you and you know that it couldn’t have been easy.
I love the corruption of the saying to give us the name. Reminds me of “Goodbye” being a corruption of “God be with ye”.